| E | O (JD) | O (dat) | Period |
| -101 | 2414860 | 1899-07-24 | 257.29 |
| -75 | 2421535 | 1917-11-02 | 256.67 |
| -74 | 2421792 | 1918-07-17 | 256.91 |
| -72 | 2422324 | 1919-12-31 | 257.38 |
| -71 | 2422572 | 1920-09-04 | 257.21 |
| -70 | 2422817 | 1921-05-07 | 257.89 |
| -69 | 2423092 | 1922-02-06 | 257.41 |
| -68 | 2423347 | 1922-10-19 | 257 |
| -66 | 2423851 | 1924-03-06 | 257.83 |
| -65 | 2424118 | 1924-11-28 | 257.33 |
| -64 | 2424374 | 1925-08-11 | 256.5 |
| -62 | 2424891 | 1927-01-10 | 256.82 |
| -61 | 2425139 | 1927-09-15 | 256.81 |
| -60 | 2425402 | 1928-06-04 | 256.5 |
| -59 | 2425654 | 1929-02-11 | 255.87 |
| -58 | 2425910 | 1929-10-25 | 255.71 |
| -57 | 2426168 | 1930-07-10 | 256.14 |
| -56 | 2426428 | 1931-03-27 | 255.86 |
| -55 | 2426675 | 1931-11-29 | 256.29 |
| -54 | 2426935 | 1932-08-15 | 256.07 |
| -53 | 2427192 | 1933-04-29 | 255.86 |
| -52 | 2427446 | 1934-01-08 | 256.29 |
| -51 | 2427706 | 1934-09-25 | 256.36 |
| -50 | 2427957 | 1935-06-03 | 256.29 |
| -49 | 2428221 | 1936-02-22 | 256.86 |
| -48 | 2428470 | 1936-10-28 | 256.86 |
| -47 | 2428729 | 1937-07-14 | 256.57 |
| -46 | 2428986 | 1938-03-28 | 256.79 |
| -45 | 2429248 | 1938-12-15 | 257.71 |
| -44 | 2429500 | 1939-08-24 | 258.79 |
| -43 | 2429755 | 1940-05-05 | 258.29 |
| -42 | 2430018 | 1941-01-23 | 258.71 |
| -41 | 2430281 | 1941-10-13 | 259.71 |
| -40 | 2430541 | 1942-06-30 | 259.29 |
| -39 | 2430790 | 1943-03-06 | 258.93 |
| -38 | 2431066 | 1943-12-07 | 259.14 |
| -37 | 2431318 | 1944-08-15 | 258.43 |
| -36 | 2431567 | 1945-04-21 | 257.93 |
| -35 | 2431831 | 1946-01-10 | 257.14 |
| -34 | 2432096 | 1946-10-02 | 256.36 |
| -33 | 2432344 | 1947-06-07 | 257.21 |
| -32 | 2432598 | 1948-02-16 | 257.36 |
| -31 | 2432858 | 1948-11-02 | 255.5 |
| -30 | 2433115 | 1949-07-17 | 255.14 |
| -29 | 2433371 | 1950-03-30 | 256.29 |
| -28 | 2433630 | 1950-12-14 | 256 |
| -27 | 2433874 | 1951-08-15 | 255.5 |
| -26 | 2434138 | 1952-05-05 | 255.43 |
| -25 | 2434392 | 1953-01-14 | 255 |
| -24 | 2434648 | 1953-09-27 | 255.64 |
| -23 | 2434902 | 1954-06-08 | 256.43 |
| -22 | 2435160 | 1955-02-21 | 255.79 |
| -21 | 2435411 | 1955-10-30 | 255.64 |
| -20 | 2435672 | 1956-07-17 | 255.71 |
| -19 | 2435930 | 1957-04-01 | 256.29 |
| -18 | 2436181 | 1957-12-08 | 257.93 |
| -17 | 2436438 | 1958-08-22 | 258.86 |
| -16 | 2436692 | 1959-05-03 | 258.43 |
| -15 | 2436958 | 1960-01-24 | 257.93 |
| -14 | 2437224 | 1960-10-16 | 257.43 |
| -13 | 2437483 | 1961-07-02 | 257.36 |
| -12 | 2437737 | 1962-03-13 | 257.57 |
| -11 | 2437985 | 1962-11-16 | 257.43 |
| -10 | 2438238 | 1963-07-27 | 256.64 |
| -9 | 2438495 | 1964-04-09 | 255.86 |
| -8 | 2438761 | 1964-12-31 | 256.71 |
| -7 | 2439025 | 1965-09-21 | 258.14 |
| -6 | 2439275 | 1966-05-29 | 258.07 |
| -5 | 2439527 | 1967-02-05 | 257.21 |
| -4 | 2439789 | 1967-10-25 | 256.57 |
| -3 | 2440048 | 1968-07-10 | 257.14 |
| -2 | 2440298 | 1969-03-17 | 257.79 |
| -1 | 2440559 | 1969-12-03 | 257.43 |
| 0 | 2440819 | 1970-08-20 | 258 |
| 1 | 2441081 | 1971-05-09 | 258.64 |
| 2 | 2441330 | 1972-01-13 | 258.93 |
| 3 | 2441590 | 1972-09-29 | 258.79 |
| 4 | 2441859 | 1973-06-25 | 258.21 |
| 5 | 2442108 | 1974-03-01 | 260.14 |
| 6 | 2442374 | 1974-11-22 | 261.93 |
| 7 | 2442627 | 1975-08-02 | 260.64 |
| 8 | 2442888 | 1976-04-19 | 260.14 |
| 9 | 2443165 | 1977-01-21 | 259.93 |
| 10 | 2443422 | 1977-10-05 | 259.29 |
| 11 | 2443676 | 1978-06-16 | 259.14 |
| 12 | 2443933 | 1979-02-28 | 257.5 |
| 13 | 2444188 | 1979-11-10 | 256.79 |
| 14 | 2444443 | 1980-07-22 | 258.29 |
| 15 | 2444700 | 1981-04-05 | 258.64 |
| 16 | 2444958 | 1981-12-19 | 258.93 |
| 17 | 2445224 | 1982-09-11 | 260.29 |
| 18 | 2445490 | 1983-06-04 | 261.07 |
| 19 | 2445740 | 1984-02-09 | 260.07 |
| 20 | 2446006 | 1984-11-01 | 258.64 |
| 21 | 2446269 | 1985-07-22 | 257.5 |
| 22 | 2446529 | 1986-04-08 | 256.79 |
| 23 | 2446770 | 1986-12-05 | 257.07 |
| 24 | 2447033 | 1987-08-25 | 257 |
| 25 | 2447286 | 1988-05-04 | 256.29 |
| 26 | 2447539 | 1989-01-12 | 256.14 |
| 27 | 2447806 | 1989-10-06 | 256.93 |
| 28 | 2448067 | 1990-06-24 | 256 |
| 29 | 2448319 | 1991-03-03 | 254.79 |
| 30 | 2448566 | 1991-11-05 | 254.43 |
| 31 | 2448834 | 1992-07-30 | 253.71 |
| 32 | 2449069 | 1993-03-22 | 253.43 |
| 33 | 2449323 | 1993-12-01 | 254.36 |
| 34 | 2449584 | 1994-08-19 | 255.07 |
| 35 | 2449841 | 1995-05-03 | 256.64 |
| 36 | 2450093 | 1996-01-10 | 258.86 |
| 37 | 2450353 | 1996-09-26 | 258.93 |
| 38 | 2450618 | 1997-06-18 | 258.43 |
| 39 | 2450878 | 1998-03-05 | 259.64 |
| 40 | 2451138 | 1998-11-20 | 261.43 |
| 41 | 2451394 | 1999-08-03 | 261.71 |
| 42 | 2451649 | 2000-04-14 | 261.57 |
| 43 | 2451920 | 2001-01-10 | 261.29 |
| 44 | 2452186 | 2001-10-03 | 261.5 |
| 45 | 2452449 | 2002-06-23 | 262.71 |
| 46 | 2452709 | 2003-03-10 | 262.5 |
| 47 | 2452965 | 2003-11-21 | 262 |
| 48 | 2453228 | 2004-08-10 | 262.36 |
| 49 | 2453493 | 2005-05-02 | 261.29 |
| 50 | 2453751 | 2006-01-15 | 260.86 |
| 51 | 2454023 | 2006-10-14 | 261.07 |
| 52 | 2454285 | 2007-07-03 | 259.57 |
| 53 | 2454531 | 2008-03-05 | 258.64 |
| 54 | 2454795 | 2008-11-24 | 258.14 |
| 55 | 2455053 | 2009-08-09 | 257.21 |
| 56 | 2455302 | 2010-04-15 | 257.64 |
| 57 | 2455563 | 2011-01-01 | 257.36 |
| 58 | 2455825 | 2011-09-20 | 256.43 |
| 59 | 2456084 | 2012-06-05 | 257.43 |
| 60 | 2456339 | 2013-02-15 | 258.07 |
| 61 | 2456590 | 2013-10-24 | 256.86 |
| 62 | 2456848 | 2014-07-09 | 256.21 |
| 63 | 2457111 | 2015-03-29 | 255.79 |
| 64 | 2457367 | 2015-12-10 | 256.21 |
| 65 | 2457617 | 2016-08-16 | 256.57 |
| 66 | 2457879 | 2017-05-05 | 255.71 |
| 67 | 2458125 | 2018-01-06 | 255.36 |
| 68 | 2458391 | 2018-09-29 | 256.14 |
| 69 | 2458639 | 2019-06-04 | 256.86 |
| 70 | 2458900 | 2020-02-20 | 257.21 |
| 71 | 2459153 | 2020-10-30 | 257.11 |
| 72 | 2459417 | 2021-07-21 | 257.14 |
| 73 | 2459675 | 2022-04-05 | 258.08 |
| 74 | 2459930 | 2022-12-16 | 257.5 |
| E | Cycle number from the GCVS4 epoch. |
| O (JD) | Julian date at observed time for maximum. |
| O (Dat) | Same as above, expressed as date. |
| Period | Calculated mean period at cycle number E. |